Automobile collision intelligent early warning function test equipment

Abstract

The invention discloses an automobile collision intelligent early warning function test device which mainly comprises a protective shell, a visual system, a sliding rod, a connecting rod, a sensor, an air pump, a controller, a swing motor and a stepping motor. A shell is fixedly installed on the outer wall of the upper portion of the protective shell, and an upper adapter is fixedly installed on the upper portion of the inner side of the shell; a rotating shaft is rotatably mounted between the upper adapter and the inner wall of the shell, a first roller is fixedly mounted on the outer side of the rotating shaft close to the upper adapter, and a first gear is fixedly mounted on the outer side of the rotating shaft between the first roller and the shell. The structure is flexible, the detection range of the sensor is greatly expanded, the cost is controlled, and later use and maintenance are convenient; the device protects the position of a probe of the sensor, air is blown into the protective shell through the air pump, the controller controls the air pump to work, and components in the protective shell are cooled through opening of an electromagnetic valve and airflow; the device not only can be used for detection, but also can be used for interacting with field personnel, and is high in safety and good in timeliness.

Description

Technical Field

[0001] The present invention relates to the technical field of collision test equipment, and particularly to a test equipment for the intelligent early warning function of vehicle collisions. Background Art

[0002] A vehicle collision test device is a device used to test the collision safety performance of vehicles, which mainly consists of a vehicle impact area, a vehicle support system, a data acquisition system, etc. In the test, the test vehicle is accelerated to a certain speed and then impacts an obstacle in the impact area to simulate a real vehicle collision situation.

[0003] However, in the existing solutions, only the data of the vehicle body impacting a fixed object can be tested. In many cases, the vehicle body is also at risk of being hit when parked, and if someone is sitting in the car, it will also cause harm to people. Fixed-mounted sensors are mostly used for detection; currently, sensors need to be arranged at intervals in the test equipment, resulting in a large number of sensors, high costs, and inconvenient later use and maintenance; the probe positions of the sensors are easily blocked by dust, affecting the detection accuracy; the intelligence level of the device is low, and it can only perform detection and cannot interact with on-site personnel, resulting in poor timeliness. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to overcome the above-mentioned disadvantages of the prior art and provide a test equipment for the intelligent early warning function of vehicle collisions and its detection method.

[0005] The technical solution adopted to solve the above technical problem is: A test equipment for the intelligent early warning function of vehicle collisions mainly includes a protective shell, a vision system, a slide bar, a connecting rod, a sensor, an air pump, a controller, a swing motor, and a stepping motor. An outer shell is fixedly installed on the outer wall of the upper part of the protective shell, and an upper adapter seat is fixedly installed on the upper inner side of the outer shell. A rotating shaft is rotatably installed between the upper adapter seat and the inner wall of the outer shell. A roller one is fixedly installed on the outer side of the rotating shaft near the upper adapter seat, and a gear one is fixedly installed on the outer side of the rotating shaft between the roller one and the outer shell. The upper front and rear side walls of the protective shell are fixedly installed through a transmission sleeve. A transmission shaft is rotatably installed through the two transmission sleeves. A roller two is fixedly installed on the transmission shaft directly below the roller one. A gear two is fixedly installed on the transmission shaft directly below the gear one. The gear one and the gear two are meshed and connected. An internal gear is fixedly installed on the outer side of the transmission shaft. A stepping motor is fixedly installed in the middle of the inner side of the protective shell below the internal gear. A motor wheel is fixedly installed on the motor shaft of the stepping motor, and the motor wheel is meshed and connected with the internal gear. Connecting seats that are symmetric in the front and rear are fixedly installed on the outer wall of the upper edge of the protective shell, and a sliding frame is fixedly installed at the top of the connecting seat. The lower part of the connecting rod is fixedly installed with symmetric connecting pieces on the left and right through bolts. On the same side, two middle plates are fixedly installed at the ends of the two connecting pieces. On the opposite sides of the lower parts of the two middle plates, symmetrically arranged supporting pieces are fixedly installed. Between the two supporting pieces on the same side, a relay pipe is fixedly installed. The left and right ends of the relay pipe are fixedly inserted and installed with sliding rods, and the sliding rods are press-fitted and installed between the first roller and the second roller; A storage battery is fixedly installed at the top end of the protective shell. A swing motor is fixedly installed at the lower part inside the protective shell. A bracket is fixedly installed at the end of the motor shaft of the swing motor. A visual system is fixedly installed in the middle of the bracket. A bottom shell is fixedly installed at the bottom end of the protective shell. An air pump is fixedly installed at the right part inside the bottom shell. An air pipe is fixedly installed at the air outlet of the air pump. A protective shell is fixedly installed on the outer wall of the bottom end of the protective shell on the left side of the air pump. An electromagnetic valve is fixedly installed by being embedded in the side wall of the bottom end of the protective shell. A jet port is fixedly installed at the bottom end of the electromagnetic valve. The right end of the air pipe penetrates and is fixedly connected to the side wall of the bottom end of the protective shell. A loudspeaker and a sensor are fixedly installed on the outer wall of the bottom end of the protective shell on the left side of the protective shell. The bottom end of the bottom shell is press-fitted and installed with a cover plate through bolts. A protective light-transmitting plate is arranged at the left part inside the cover plate.

[0006] Further, the sensor is a laser displacement sensor, which can accurately determine the real-time position of the device from the measured vehicle.

[0007] Further, the sliding rod is inserted and installed in the middle of the sliding frame, and grooves matched with the sliding rod are arranged on the outer edges of the first roller and the second roller.

[0008] Further, a wear-resistant ring is fixedly installed on the side wall of the bracket, and the wear-resistant ring is rotatably connected through the lower side wall of the protective shell.

[0009] Further, the lower opening of the jet port faces the direction of the components inside the protective shell.

[0010] Further, an opening matched with the supporting piece and the sliding rod is arranged in the middle of the outer shell.

[0011] Further, a controller is fixedly installed in the middle of the protective shell. The controller is electrically connected to the visual system, the loudspeaker, the sensor, the air pump, the swing motor, the stepping motor and the electromagnetic valve through wire harnesses, and the controller is electrically connected to the storage battery.

[0012] The beneficial effects of the present invention are as follows: In the present invention, the structure is flexible, which greatly improves the detection range of the sensor, controls the cost, and is convenient for later use and maintenance; moreover, the device protects the probe position of the sensor, blows air into the protective shell through the air pump, the controller controls the operation of the air pump, and through the opening of the electromagnetic valve, the air flow cools the components in the protective shell; the device can not only perform detection, but also interact with on-site personnel, with high safety and good timeliness. Description of the Drawings

[0013] Figure 1 It is a bottom view schematic diagram of a test device for an intelligent vehicle collision warning function in the present invention.

[0014] Figure 2 It is a bottom view schematic diagram among a protective shell, a sliding rod, a vision system and a carriage in a test device for an intelligent vehicle collision warning function.

[0015] Figure 3 It is a left view schematic diagram among a protective shell, a sliding rod, a vision system and a carriage in a test device for an intelligent vehicle collision warning function.

[0016] Figure 4 It is a bottom view schematic diagram among a protective shell, a speaker, a sensor and an air pump in a test device for an intelligent vehicle collision warning function.

[0017] Figure 5 It is a sectional view schematic diagram among a protective shell, a transmission shaft, a sliding rod, roller two and roller one in a test device for an intelligent vehicle collision warning function.

[0018] Figure 6 It is a front view schematic diagram among a protective shell, a speaker, a sensor and an air pump in a test device for an intelligent vehicle collision warning function.

[0019] Reference numerals: protective shell 1, cover plate 2, first gear 3, bracket 4, outer shell 5, carriage 6, connecting seat 7, vision system 8, protective light-transmitting plate 9, sliding rod 10, connecting piece 11, middle plate 12, connecting rod 13, relay pipe 14, support piece 15, speaker 16, sensor 17, jet port 18, protective shell 19, air pump 20, bottom shell 21, internal gear 22, transmission shaft 23, controller 24, swing motor 25, wear-resistant ring 26, stepping motor 27, motor wheel 28, second gear 29, roller one 30, upper adapter seat 31, rotating shaft 32, transmission sleeve 33, roller two 34, solenoid valve 35, air pipe 36, storage battery 37. Detailed implementation manners

[0020] In order to make the objectives, technical solutions and advantages of the present invention clearer and more understandable, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0021] Such as Figures 1-6As shown in the figure, this embodiment provides a test device for the intelligent early warning function of vehicle collision, which mainly includes a protective shell 1, a vision system 8, a sliding rod 10, a connecting rod 13, a sensor 17, an air pump 20, a controller 24, a swing motor 25 and a stepping motor 27. An outer shell 5 is fixedly installed on the outer wall of the upper part of the protective shell 1. An upper adapter seat 31 is fixedly installed on the upper part inside the outer shell 5. A rotating shaft 32 is rotatably installed between the upper adapter seat 31 and the inner wall of the outer shell 5. A first roller 30 is fixedly installed on the outer side of the rotating shaft 32 near the upper adapter seat 31. A first gear 3 is fixedly installed on the outer side of the rotating shaft 32 between the first roller 30 and the outer shell 5. A transmission sleeve 33 is fixedly installed through the upper parts of the front and rear side walls of the protective shell 1. A transmission shaft 23 is rotatably installed through the middle of the two transmission sleeves 33. A second roller 34 is fixedly installed on the transmission shaft 23 directly below the first roller 30. A second gear 29 is fixedly installed on the transmission shaft 23 directly below the first gear 3. The first gear 3 and the second gear 29 are meshed and connected. An internal gear 22 is fixedly installed on the outer side of the transmission shaft 23. A stepping motor 27 is fixedly installed in the middle inside the protective shell 1 below the internal gear 22. A motor wheel 28 is fixedly installed on the motor shaft of the stepping motor 27. The motor wheel 28 and the internal gear 22 are meshed and connected. Connecting seats 7 that are symmetric front and rear are fixedly installed on the outer wall of the upper edge of the protective shell 1. A sliding frame 6 is fixedly installed at the top of the connecting seat 7. Symmetric connecting pieces 11 are fixedly installed at the lower part of the connecting rod 13 by bolts. Middle plates 12 are fixedly installed at the ends of the two connecting pieces 11 on the same side. Symmetrically arranged support pieces 15 are fixedly installed on the opposite sides of the lower parts of the two middle plates 12. A relay pipe 14 is fixedly installed between the two support pieces 15 on the same side. The left and right ends of the relay pipe 14 are fixedly inserted and installed with sliding rods 10. The sliding rods 10 are press-fitted between the first roller 30 and the second roller 34. A storage battery 37 is fixedly installed at the top of the protective shell 1. A swing motor 25 is fixedly installed at the lower part inside the protective shell 1. A bracket 4 is fixedly installed at the end of the motor shaft of the swing motor 25. A vision system 8 is fixedly installed in the middle of the bracket 4. A bottom shell 21 is fixedly installed at the bottom of the protective shell 1. An air pump 20 is fixedly installed on the right side inside the bottom shell 21. An air pipe 36 is fixedly installed at the air outlet of the air pump 20. A protective shell 19 is fixedly installed on the outer wall of the bottom of the protective shell 1 on the left of the air pump 20. An electromagnetic valve 35 is fixedly installed by embedding on the bottom side wall of the protective shell 19. An air jet port 18 is fixedly installed at the bottom of the electromagnetic valve 35. The right end of the air pipe 36 penetrates and is fixedly connected to the bottom side wall of the protective shell 19. A speaker 16 and a sensor 17 are fixedly installed on the outer wall of the bottom of the protective shell 1 on the left of the protective shell 19. A cover plate 2 is press-fitted and installed at the bottom of the bottom shell 21 by bolts. A protective light-transmitting plate 9 is arranged on the left side inside the cover plate 2.

[0022] The vision system 8 includes a vehicle perspective environment image acquisition module for acquiring multiple vehicle perspective environment images of the vehicle under test; It includes an object detection module for obtaining multiple target region images by passing the multiple vehicle perspective environment images through a multi-object detector based on the YOLO network; It includes an object partitioning module for partitioning each of the multiple object images according to the region where the object is located to obtain a sequence of local region images of interest for the multiple objects; It includes an object semantic feature extraction module for performing feature extraction and global semantic fusion characterization of the region of interest on the sequence of the multiple object images to obtain multiple global semantic feature vectors of the objects; A vehicle multi-aspect perspective environment semantic fusion characterization module for passing the multiple global semantic feature vectors of the objects through an object semantic feature information transfer and enhancement module based on an information transfer network to obtain a multi-aspect vehicle environment semantic fusion characterization feature vector as the multi-aspect vehicle environment semantic fusion characterization feature; A surrounding environment map generation module for generating a state image of the vehicle under test based on the multi-aspect vehicle environment semantic fusion characterization feature.

[0023] The application of the vision system 8 can improve the accuracy of the test.

[0024] The slide bar 10 is inserted and installed in the middle of the carriage 6, and grooves matching the slide bar 10 are provided on the outer edges of the first roller 30 and the second roller 34.

[0025] A wear-resistant ring 26 is fixedly installed on the side wall of the bracket 4, and the wear-resistant ring 26 is rotatably connected through the lower side wall of the protective shell 1.

[0026] The sensor 17 is a laser displacement sensor, which can accurately determine the real-time position of the device from the vehicle under test; when the emergency braking strategy executed by the vehicle under test is emergency braking when the distance between the vehicle under test and the test device is S, the vehicle under test performs emergency braking; specifically ; V1 is the initial speed of the vehicle under test during the test, V0 is the speed of the vehicle under test after deceleration, A max is the maximum deceleration of the background vehicle, M is the safety threshold, and the safety threshold M = n * V1. In this embodiment, n = 0.5s;

[0027] By setting a safety threshold M, the accuracy and safety of the test can be improved. When the avoidance strategy executed by the vehicle under test is lane-changing by steering, the time for the background vehicle to change lanes by steering is T_test; T_test = T0 + T_safety; T0 is the time taken for the vehicle under test to start changing lanes by steering to the first target point; T_safety is 0.2 - 1.0 s. By setting T_test = T0 + T_safety, while ensuring the safety of the test, the accuracy of the test is improved.

[0028] The lower opening of the jet port 18 faces the direction of the components inside the protective shell 19 and is used to cool the components.

[0029] An opening matching the support piece 15 and the slide bar 10 is provided in the middle of the outer shell 5.

[0030] A controller 24 is fixedly installed in the middle of the inner side of the protective shell 1. The controller 24 is electrically connected to the vision system 8, the speaker 16, the sensor 17, the air pump 20, the swing motor 25, the stepping motor 27, and the solenoid valve 35 through a wire harness, and the controller 24 is electrically connected to the storage battery 37.

[0031] The working principle of the present invention is as follows: The present invention relates to a test device for the intelligent early warning function of vehicle collisions. When in use, the device is installed on the reserved installation station in the lane. A parallel slide rail is formed through the slide bar 10. The stepping motor 27 drives the roller one 30 and the roller two 34 to rotate in opposite directions through the transmission shaft 23 and the rotating shaft 32 cooperating with the gear one 3 and the gear two 29, so that the protective shell 1 can slide on the slide bar 10, greatly improving the detection range of the sensor 17. And two sensors are used in combination to improve the fault tolerance, avoiding inaccurate detection caused by sensor damage. Flexible sensors are used for detection, avoiding the need to arrange a sensor every certain distance, greatly reducing the number of sensors, controlling costs, and being convenient for later use and maintenance; the probe position of the sensor is protected by the protective light-transmitting plate 9, and the air pump 20 blows air into the protective shell 19 in real time. The controller 24 controls the air pump 20 to work. Through the opening of the solenoid valve 35, the airflow cools the components inside the protective shell 19; the device has a high degree of intelligence. It will modulate the remote controller through the wireless communication device inside the controller 24 and drive the vision system to swing through the swing motor 25. When the vision system detects a moving human figure, it will notify the on-site personnel through the speaker, which can not only perform detection but also interact with the on-site personnel, with high safety and good timeliness.

[0032] The above is only a preferred embodiment of the present invention and is not intended to limit the protection scope of the present invention.

[0033] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above-described exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, in any regard, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present invention. Any reference signs in the claims should not be construed as limiting the claims involved.

[0034] In addition, it should be understood that although this specification is described in terms of embodiments, not every embodiment only contains an independent technical solution. This narrative manner of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An intelligent early warning function test device for vehicle collision, mainly comprising a protective shell (1), a vision system (8), a sliding rod (10), a connecting rod (13), a sensor (17), an air pump (20), a controller (24), a swing motor (25) and a stepping motor (27), characterized in that, On the upper outer wall of the protective shell (1), a housing (5) is fixedly installed. On the upper inner side of the housing (5), an upper adapter base (31) is fixedly installed. Between the upper adapter base (31) and the inner wall of the housing (5), a rotating shaft (32) is rotatably installed. Near the upper adapter base (31) on the outer side of the rotating shaft (32), a first roller (30) is fixedly installed. Between the first roller (30) and the housing (5) on the outer side of the rotating shaft (32), a first gear (3) is fixedly installed. On the upper parts of the front and rear side walls of the protective shell (1), a transmission sleeve (33) is fixedly installed through. Between the two transmission sleeves (33), a transmission shaft (23) is rotatably installed through. At the position directly below the first roller (30) on the transmission shaft (23), a second roller (34) is fixedly installed. At the position directly below the first gear (3) on the transmission shaft (23), a second gear (29) is fixedly installed. The first gear (3) and the second gear (29) are meshed and connected. On the outer side of the transmission shaft (23), an internal gear (22) is fixedly installed. In the middle inside the protective shell (1) and below the internal gear (22), a stepper motor (27) is fixedly installed. On the motor shaft of the stepper motor (27), a motor pulley (28) is fixedly installed. The motor pulley (28) and the internal gear (22) are meshed and connected. On the outer wall at the upper edge of the protective shell (1), symmetric connecting seats (7) are fixedly installed front and back. At the top of the connecting seat (7), a sliding frame (6) is fixedly installed. At the lower part of the connecting rod (13), symmetric connecting plates (11) are fixedly installed by bolts. At the ends of the two connecting plates (11) on the same side, a middle plate (12) is fixedly installed. On the opposite sides of the lower parts of the two middle plates (12), symmetrically arranged support pieces (15) are fixedly installed. Between the two support pieces (15) on the same side, a relay pipe (14) is fixedly installed. At the left and right ends of the relay pipe (14), sliding rods (10) are fixedly inserted and installed. The sliding rods (10) are press-fitted between the first roller (30) and the second roller (34). At the top of the protective shell (1), a storage battery (37) is fixedly installed. At the lower part inside the protective shell (1), a swing motor (25) is fixedly installed. At the end of the motor shaft of the swing motor (25), a bracket (4) is fixedly installed. In the middle of the bracket (4), a vision system (8) is fixedly installed. At the bottom of the protective shell (1), a bottom shell (21) is fixedly installed. On the right side inside the bottom shell (21), an air pump (20) is fixedly installed. At the air outlet of the air pump (20), an air pipe (36) is fixedly installed. On the outer wall of the bottom of the protective shell (1) and on the left side of the air pump (20), a protective shell (19) is fixedly installed. On the bottom side wall of the protective shell (19), a solenoid valve (35) is fixedly installed by embedding. At the bottom of the solenoid valve (35), a jet nozzle (18) is fixedly installed. The right end of the air pipe (36) penetrates and is fixedly connected to the bottom side wall of the protective shell (19). On the outer wall of the bottom of the protective shell (1) and on the left side of the protective shell (19), a speaker (16) and a sensor (17) are fixedly installed. At the bottom of the bottom shell (21), a cover plate (2) is press-fitted and installed by bolts. On the left side inside the cover plate (2), a protective light-transmitting plate (9) is arranged.

2. The intelligent early warning function test device for vehicle collision according to claim 1, characterized in that The slide bar (10) is inserted and installed in the middle of the carriage (6), and grooves matching with the slide bar (10) are arranged on the outer edges of the first roller (30) and the second roller (34).

3. The intelligent early warning function test device for vehicle collision according to claim 2, characterized in that, A wear-resistant ring (26) is fixedly installed on the side wall of the bracket (4), and the wear-resistant ring (26) is rotatably connected through the lower side wall of the protective shell (1).

4. The test device for the intelligent collision warning function of an automobile according to claim 1, characterized in that, The sensor (17) is a laser displacement sensor, which can accurately determine the real-time position of the device from the measured vehicle.

5. The test device for the intelligent collision warning function of an automobile according to claim 1, characterized in that, The lower opening of the air jet port (18) faces the direction of the components inside the protective shell 19.

6. The test device for the intelligent collision warning function of an automobile according to claim 1, characterized in that, An opening matching with the support piece (15) and the slide bar (10) is formed in the middle of the outer shell (5).

7. An intelligent early warning function test device for vehicle collision according to claim 1, characterized in that, A controller (24) is fixedly installed in the middle of the inner side of the protective shell (1). The controller (24) is electrically connected to the vision system (8), the speaker (16), the sensor (17), the air pump (20), the swing motor (25), the stepper motor (27) and the solenoid valve (35) through wire harnesses, and the controller (24) is electrically connected to the storage battery (37).

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